Shen Lang used the Tai Chi Diagram to effortlessly swallow the Netherworld Demon Tribulation, startling even himself.
Previously, during his cultivation, the Tai Chi Diagram had always been remarkably fast at absorbing Heaven and Earth Primordial Qi.
But it was never as fast as the Netherworld Demon Tribulation could gather Heaven and Earth Primordial Qi.
While both involved the Tai Chi Diagram, the former process—absorbing Heaven and Earth Primordial Qi for his own use—took a bit of time.
The latter, however, involved directly gathering Heaven and Earth Primordial Qi for an attack, which was a much faster process.
The energy gathered by a single Netherworld Demon Tribulation was immense and dangerous.
The first time Shen Lang used it, he had been unable to fully merge the energies and nearly crippled himself, a testament to its wild and ferocious power.
Previously, it would have taken the Tai Chi Diagram almost a full day to absorb such an immense amount of energy.
